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A comment on Ask HN: Are there books for mathematics like Feynman's lectures on physics?. Parent comment

Re:Ask HN: Are there books for mathematics like Feynman's le... by m31415 on Thursday October 24, 2019 @09:37PM (#21350988)
Some problem collections by Arnold:

* Problems for Children from 5 to 15: http://jnsilva.ludicum.org/HMR13_14/Arnold_en.pdf

* A mathematical trivium pt. 1: http://www.physics.montana.edu/avorontsov/teaching/problemof...

* A mathematical trivium pt. 2: https://www.latroika.com/mathoman/exos/arnold-exos-math-engl...

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Re:Ask HN: Are there books for mathematics like Feynman's le... by reactor4 on Friday October 25, 2019 @03:28AM (#21352700)
Thank you, Is there an answer key to those?
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Re:Ask HN: Are there books for mathematics like Feynman's le... by m31415 on Friday October 25, 2019 @01:14PM (#21357071)
Not that I know of, but many of the problems have been discussed online, e.g, calculating the average of the 100th power of sin in under 5 minutes [1], which according to Arnold, if you cannot solve, you don't understand mathematics.

[1]: https://math.stackexchange.com/questions/24533/find-the-aver...

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